20296537478916 has 96 divisors (see below), whose sum is σ = 50510248427520. Its totient is φ = 6321091828224.

The previous prime is 20296537478843. The next prime is 20296537478989. The reversal of 20296537478916 is 61987473569202.

It is an interprime number because it is at equal distance from previous prime (20296537478843) and next prime (20296537478989).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 334768981 + ... + 334829603.

It is an arithmetic number, because the mean of its divisors is an integer number (526148421120).

It is a 1-persistent number, because it is pandigital, but 2⋅20296537478916 = 40593074957832 is not.

Almost surely, 2^{20296537478916} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20296537478916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25255124213760).

20296537478916 is an abundant number, since it is smaller than the sum of its proper divisors (30213710948604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20296537478916 is a wasteful number, since it uses less digits than its factorization.

20296537478916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72593 (or 72591 counting only the distinct ones).

The product of its (nonzero) digits is 274337280, while the sum is 69.

The spelling of 20296537478916 in words is "twenty trillion, two hundred ninety-six billion, five hundred thirty-seven million, four hundred seventy-eight thousand, nine hundred sixteen".